<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<%@ include file="header.jsp" %>

<h1>1. page指令(描述页面信息)</h1>

<h1>2. taglib指令(导入标签库)</h1>

<h1>3. include指令(用来包含其他页面(在转换成java代码前包含)</h1>

中间的的内容
<%@ include file="foot.jsp" %>
</body>
</html>